Inventor · disambiguated record
Robert T. Chang
Also filed as: CHANG ROBERT · CHANG ROBERT T · CHANG ROBERT TIENHAN
54 granted patents·35 pending applications·3,672 citations·filing 1994–2025
99Inventor score
Files withMVRX INC19SHIFAMED HOLDINGS LLC19AMPLE MEDICAL INC14BOSTON SCIENT SCIMED INC8MACHOLD TIMOTHY R7
Top patents by PatentIndex Score
89 records- 0198US11737920B2Adjustable flow glaucoma shunts having non-linearly arranged flow control elements, and associated systems and methodsSHIFAMED HOLDINGS LLC·Filed 2021·Granted Aug 29, 2023·9 cites·9 claims
- 0298US8016882B2Devices, systems, and methods for supplementing, repairing, or replacing a native heart valve leafletMVRX INC·Filed 2007·Granted Sep 13, 2011·224 cites·12 claims
- 0398US6309383B1Stent crimper apparatus with radiation shiedISOSTENT INC·Filed 2000·Granted Oct 30, 2001·117 cites·31 claims
- 0497US11596550B2Adjustable glaucoma treatment devices and associated systems and methodsSHIFAMED HOLDINGS LLC·Filed 2021·Granted Mar 7, 2023·11 cites·18 claims
- 0597US11529258B2Adjustable flow glaucoma shunts and associated systems and methodsSHIFAMED HOLDINGS LLC·Filed 2021·Granted Dec 20, 2022·13 cites·44 claims
- 0697US11291585B2Shunting systems with rotation-based flow control assemblies, and associated systems and methodsSHIFAMED HOLDINGS LLC·Filed 2021·Granted Apr 5, 2022·18 cites·31 claims
- 0797US8851286B2Dual sterilization containment vesselBOSTON SCIENT SCIMED INC·Filed 2012·Granted Oct 7, 2014·43 cites·20 claims
- 0897US8163013B2Devices, systems, and methods for reshaping a heart valve annulus, including the use of magnetic toolsMACHOLD TIMOTHY R·Filed 2010·Granted Apr 24, 2012·257 cites·9 claims
- 0997US8142494B2Devices, systems, and methods for retaining a native heart valve leafletRAHDERT DAVID A·Filed 2009·Granted Mar 27, 2012·230 cites·13 claims
- 1097US7691144B2Devices, systems, and methods for reshaping a heart valve annulusMVRX INC·Filed 2005·Granted Apr 6, 2010·142 cites·9 claims
- 1196US11865283B2Adjustable shunting systems with plate assemblies, and associated systems and methodsSHIFAMED HOLDINGS LLC·Filed 2022·Granted Jan 9, 2024·9 cites·11 claims
- 1296US11766355B2Intraocular shunts with low-profile actuation elements and associated systems and methodsSHIFAMED HOLDINGS LLC·Filed 2021·Granted Sep 26, 2023·10 cites·34 claims
- 1396US8187207B2Devices, systems, and methods for reshaping a heart valve annulus, including the use of magnetic toolsMACHOLD TIMOTHY R·Filed 2010·Granted May 29, 2012·79 cites·5 claims
- 1496US7381220B2Devices, systems, and methods for supplementing, repairing, or replacing a native heart valve leafletAMPLE MEDICAL INC·Filed 2003·Granted Jun 3, 2008·335 cites·4 claims
- 1595US10258467B2Medical guidewireBOSTON SCIENT SCIMED INC·Filed 2016·Granted Apr 16, 2019·28 cites·16 claims
- 1695US9498331B2Devices, systems, and methods for reshaping a heart valve annulusMVRX INC·Filed 2015·Granted Nov 22, 2016·22 cites·16 claims
- 1795US8858622B2Devices, systems, and methods for reshaping a heart valve annulus, including the use of magnetic toolsMACHOLD TIMOTHY R·Filed 2012·Granted Oct 14, 2014·83 cites·7 claims
- 1895US8690858B2Devices, systems, and methods for reshaping a heart valve annulus, including the use of magnetic toolsMACHOLD TIMOTHY R·Filed 2012·Granted Apr 8, 2014·124 cites·11 claims
- 1994US7527646B2Devices, systems, and methods for retaining a native heart valve leafletAMPLE MEDICAL INC·Filed 2003·Granted May 5, 2009·288 cites·15 claims
- 2093US9597184B2Devices, systems, and methods for reshaping a heart valve annulus, including the use of a bridge implant having an adjustable bridge stopMVRX INC·Filed 2015·Granted Mar 21, 2017·17 cites·16 claims
- 2193US7033373B2Method and device for use in minimally invasive placement of space-occupying intragastric devicesSATIETY INC·Filed 2001·Granted Apr 25, 2006·422 cites·3 claims
- 2292US5507795ACatheter with perfusion systemDEVICES VASCULAR INTERVENTION·Filed 1994·Granted Apr 16, 1996·370 cites·32 claims
- 2391US9610161B2Devices, systems, and methods for supplementing, repairing or replacing a native heart valve leafletMACOVIAK JOHN A·Filed 2011·Granted Apr 4, 2017·39 cites·3 claims
- 2490US8979925B2Devices, systems, and methods for reshaping a heart valve annulusCHANG ROBERT T·Filed 2011·Granted Mar 17, 2015·29 cites·11 claims
- 2590US7291168B2Methods and devices for heart valve treatmentsAMPLE MEDICAL INC·Filed 2003·Granted Nov 6, 2007·219 cites·5 claims
- 2689US10092182B2Modular lens adapters for mobile anterior and posterior segment ophthalmoscopyUNIV LELAND STANFORD JUNIOR·Filed 2017·Granted Oct 9, 2018·11 cites·24 claims
- 2788US9707077B2Dual sterilization containment vesselBOSTON SCIENT SCIMED INC·Filed 2014·Granted Jul 18, 2017·8 cites·15 claims
- 2887US10743761B2Modular lens adapters for mobile anterior and posterior segment ophthalmoscopyUNIV LELAND STANFORD JUNIOR·Filed 2018·Granted Aug 18, 2020·6 cites·17 claims
- 2987US10278818B2Devices, systems, and methods for reshaping a heart valve annulusMVRX INC·Filed 2016·Granted May 7, 2019·6 cites·20 claims
- 3086US9861475B2Devices, systems, and methods for reshaping a heart valve annulusMACHOLD TIMOTHY R·Filed 2009·Granted Jan 9, 2018·38 cites·21 claims
- 3185US12472098B2Adjustable flow glaucoma shunts having non-linearly arranged flow control elements, and associated systems and methodsSHIFAMED HOLDINGS LLC·Filed 2023·Granted Nov 18, 2025·0 cites·17 claims
- 3285US8956407B2Methods for reshaping a heart valve annulus using a tensioning implantMACOVIAK JOHN A·Filed 2004·Granted Feb 17, 2015·122 cites·8 claims
- 3385US8784482B2Method of reshaping a heart valve annulus using an intravascular deviceRAHDERT DAVID A·Filed 2004·Granted Jul 22, 2014·149 cites·5 claims
- 3485US7753928B2Method and device for use in minimally invasive placement of intragastric devicesSATIETY INC·Filed 2005·Granted Jul 13, 2010·41 cites·8 claims
- 3584US10561315B2Modular adapters for mobile ophthalmoscopyUNIV LELAND STANFORD JUNIOR·Filed 2016·Granted Feb 18, 2020·5 cites·23 claims
- 3684US9706918B2Modular lens adapters for mobile anterior and posterior segment ophthalmoscopyUNIV LELAND STANFORD JUNIOR·Filed 2014·Granted Jul 18, 2017·18 cites·13 claims
- 3783US10799354B2Devices, systems, and methods for reshaping a heart valve annulusMVRX INC·Filed 2019·Granted Oct 13, 2020·4 cites·10 claims
- 3883US10398437B2Devices, systems, and methods for reshaping a heart valve annulus, including the use of magnetic toolsMVRX INC·Filed 2016·Granted Sep 3, 2019·3 cites·24 claims
- 3982US10219902B2Devices, systems, and methods for reshaping a heart valve anulus, including the use of a bridge implant having an adjustable bridge stopMVRX INC·Filed 2017·Granted Mar 5, 2019·5 cites·25 claims
- 4081US10201423B2Devices, systems, and methods for reshaping a heart valve annulusMVRX INC·Filed 2015·Granted Feb 12, 2019·4 cites·21 claims
- 4181US9179896B2Devices, systems, and methods for reshaping a heart valve annulus, including the use of a bridge implant having an adjustable bridge stopMACHOLD TIMOTHY R·Filed 2011·Granted Nov 10, 2015·11 cites·28 claims
- 4278US2025387265A1Shunting systems with rotation-based flow control assemblies, and associated systems and methodsSHIFAMED HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 4377US10543386B2Systems and methods for respiratory health managementADVANCED VENTILATION APPLICATIONS INC·Filed 2018·Granted Jan 28, 2020·3 cites·27 claims
- 4476US2024024107A1Devices, systems and methods for reshaping a heart valve annulusMVRX INC·Filed 2023·Application pending·0 cites
- 4574US10494157B2Single use vials for administering eye dropsCHANG ROBERT T·Filed 2017·Granted Dec 3, 2019·6 cites·7 claims
- 4673US10219905B2Devices, systems, and methods for reshaping a heart valve annulusMVRX INC·Filed 2016·Granted Mar 5, 2019·1 cites·15 claims
- 4773US10172621B2Devices, systems, and methods for reshaping a heart valve annulus, including the use of magnetic toolsMVRX INC·Filed 2016·Granted Jan 8, 2019·1 cites·15 claims
- 4873US8740842B2Kerstpiek tip for medical devicesBOSTON SCIENT SCIMED INC·Filed 2013·Granted Jun 3, 2014·5 cites·18 claims
- 4972US12370085B2Shunting systems with rotation-based flow control assemblies, and associated systems and methodsSHIFAMED HOLDINGS LLC·Filed 2022·Granted Jul 29, 2025·0 cites·8 claims
- 5069US2023381021A1Intraocular shunts with low-profile actuation elements and associated systems and methodsSHIFAMED HOLDINGS LLC·Filed 2023·Application pending·0 cites
Showing the top 50 of 89 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →